Grate



R. HOFFMAN June 24, 1930.

GRATE 'original Filed oct. 26. 1925 Patented June 24, 1930 Price RUDOLPH HOFFMAN, OF CLEVELAND, OHIO GRATE Original application iiled October 26, 1925, Serial No. 64,743. Divided.l and this application led `April 4, 1929. Serial No. 352,486;

This application is a division of my application Serial No. 64,743, iiled October 26, 1925.

rlhis invention relates to grids or grates for use in connection with stove tops, and the like, and has for one of its objects the provision of a simple form of construction that will have the requisite strength and dural bility, provide a maximumamount of open space for the passage of the hot gases from the burner of the stove and willl also be adapted for production at a very low cost.

Other objects of the invention andthe features of novelty will be apparent from the following description taken in connection with the accompanying drawings, of which:

Fig. 1 is a perspective of a portion of a stove top having a preferred form of my invention applied thereto;

Fig. 2 isa plan view of the grate shown in Fig. 1; and

Fig. 3 is a perspective view of the outer end of one of the supporting arms.

Referring to the drawings, 10 indicates a stove top such as is commonly used in connection with oil and gas stoves, and 11 a circular burner opening therein. Burner openings, such as the opening 11, are usually formed with a downwardly extending reinforcing flange 12 and the grate forming the subject matter of this invention, as illustrated in the drawings, consists of four uniform U-shaped members 13, symmetrically arranged about a central opening 13, with their base portions in contacting relation as indicated at the points 14. The members 13, when assembled as shown in Fig. 2, are permanently secured together, at the points 14, by welding or riveting or in any other suitable manner so as to form a unitary structure. Each of the outwardly projecting arms of the members 13 is notched as shown at 15, in Fig. 3, so that the horizontal edges of these notches may rest on the stove top 10 and the vertical edges of the notches fit against the flange 12 and thus locate the grate in the opening 11.

The members 13 are preferably made from bars of wrought metal, of rectangular crosssection, commonly called strap-iron, as this form of material may be readily bent to form the U-shaped m members togeth the points 14,

embers, and by securing these er by welding, or otherwise, at a structure of maximum strength and aording the maximum amount of open space for the burner flame is provided. The structure also has the advantage that it can be manufactured at a very low cost because of the material from which it is made and also becaus size and shape.

Having thus l claim is:

e the parts 13 are uniform in described my invention, what 1. A grate bar for gas and oil stoves and the like, comprising a plurality of metal bars each having a curved .portion intermediate of its ends thereby providing arms extending from the said said bars being curved portion, each ofthe so bent as to stand on edge,

with the curved portion of each bar being directly connected to the curved portions of each adjacent bar so that the arms of each bar lie in substantially radial directions.

2. A grate bar for gas and oil stoves and the like, compri each having a sing a plurality of metal bars curved portion intermediate n testimony signature.

whereof, I hereunto ax my RUDOLPH .HOFFMAN 

